Week 08 · The Refrigerator
Monday
Meet the refrigerator
// A machine that moves heat out
⏱ about 15 min
Monday: Meet the Refrigerator
Rocket presses his hand on the fridge door. "It feels cool."
He walks around to the back. "Hey! Back here it feels warm."
Raven tilts her head. "Cool in front, warm in back. What do you notice?"
Nova shows a glowing cutaway. "Would you like a hint? Follow the heat."
A fridge keeps food cold
A fridge is a machine that keeps food cold.
It lives in the kitchen and runs all day and night.
Inside, the air stays cold.
The back of a fridge can feel warm when it runs.
A parts tour
| Part | What it does |
|---|---|
| Door | Opens for food, then shuts tight |
| Seal | Soft strip that closes the gap around the door |
| Thick walls | Keep the cold air in |
| Shelves | Hold the food |
| Back and coils | Warm to the touch, so we never touch them |
FRIDGE TOUR
- Read the question.
- Tap your answer.
What does a fridge do?
Where did Rocket feel warm air?
What is the soft strip around the door?
Try it
Stand in front of the fridge with a grown-up.
Open the door for a count of three. Feel the cold air.
Close the door. Listen for the thump.
Put your hand near the side. Is it cool or warm?
Open the door for a count of three. Feel the cold air.
Close the door. Listen for the thump.
Put your hand near the side. Is it cool or warm?
Safety first
A grown-up stands with you at the fridge.
Open the door only for a moment.
Never touch the back of the fridge or its coils.
Never unplug the fridge.
Nothing is eaten during this lesson.
Open the door only for a moment.
Never touch the back of the fridge or its coils.
Never unplug the fridge.
Nothing is eaten during this lesson.
Think about the parts tour and the safety box.
| Sentence | True or false? |
|---|---|
| A fridge keeps food cold. | ? |
| The back of a fridge can feel warm. | ? |
| We should touch the coils at the back. | ? |
| The seal is the soft strip around the door. | ? |
WHY THIS EXERCISEKnowing the parts helps us see how the fridge works.
STORY CHECK
- Read the question.
- Tap your answer.
What hint did Nova give?
Why do thick walls matter on a fridge?
SAFE AT THE FRIDGE
- Read the question.
- Tap your answer.
How long may the door stay open?
May you touch the coils at the back?
May you unplug the fridge for a look?
Draw your fridge. Label the door, the seal and the shelves.
You met the fridge like a real engineer!
Tomorrow, we follow the heat.